食品真空袋印刷的三个特殊要求! - 公司新闻

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食品真空袋印刷的三个特殊要求!

发布日期:2019-04-23 作者:bob体育app官方网站 点击:

现在的鲜奶、豆奶及许多果汁饮料、调味品等鲜食饮品大都采用真空袋包装,这些用于食品真空包装的真空袋材料主要为聚乙烯(PE)共挤膜,它必须符合包装印刷、加工、贮运和卫生等方面的要求。从膜的外观和性能看,可分三大类:软质乳白PE膜、黑白共挤PE膜、硬质高温蒸煮PE膜。软质乳白PE塑料薄膜包装主要应用于牛奶、酱油、醋等简易的液体包装,共挤吹膜母料由LDPE、LLDPE和乳白色料组成。该塑料薄膜包装在性能上,阻隔性能比较差,杀菌温度不超过90℃,保质期比较短;一般用在手工或低速的灌装设备上。
  Nowadays, fresh milk, soy milk and many fruit juice drinks, condiments and other fresh drinks are packaged in vacuum bags. These vacuum bags are mainly made of polyethylene (PE) co-extruded film, which must meet the requirements of packaging, printing, processing, storage, transportation and hygiene. From the appearance and performance of the membrane, it can be divided into three categories: soft milky white PE film, black-white co-extruded PE film and hard high temperature cooking PE film. Soft milky white PE plastic film packaging is mainly used in milk, soy sauce, vinegar and other simple liquid packaging, co-extrusion blown film masterbatch is composed of LDPE, LLDPE and milky white material. The plastic film packaging in performance, barrier performance is poor, sterilization temperature does not exceed 90 C, short shelf life; generally used in manual or low-speed filling equipment.
  漂亮的图案为真空袋包装增色不少,这其中真空袋印刷技术可是功不可没。用于食品包装的真空袋对卫生和温度等反面的要求非常严格,同时对真空袋印刷也有这特殊的要求,主要体现在以下三个方面:
  Beautiful designs add color to vacuum bag packaging, among which vacuum bag printing technology contributes a lot. Vacuum bags for food packaging have very strict requirements on hygiene and temperature, and also have special requirements for vacuum bag printing, which are mainly embodied in the following three aspects:
济南自封口袋
  1、印前处理。塑料薄膜表面好经电火花或火焰处理,目前市售的免处理塑料油墨,印刷后牢固度虽有所提高,但印品放置1~2个月牢固度有所下降。
  1. Prepress treatment. The surface of plastic film should be treated by electric spark or flame. At present, the solid degree of the free-treatment plastic ink sold in the market has been improved after printing, but the firm degree of the printed product has decreased after 1-2 months.
  2、印后处理。自然晾干速度慢,占用空间大;有条件的若自制一条烘干装置的传送带,可使效率和质量大大提高。
  2. Post-processing. Natural air drying is slow and takes up a lot of space. If a self-made conveyor belt of drying device is available, the efficiency and quality can be greatly improved.
  3、印料的选择。不同类型的塑料,用不同的油墨。虽然都是塑料油墨如果选错类型,印品的油墨就容易脱落。如软聚乙烯墨、软聚丙烯墨、软聚氯乙烯墨等,首要的问题是会鉴别塑料的类型。
  3. Selection of printing materials. Different types of plastics, using different inks. Although all of them are plastic inks, if the wrong type is chosen, the ink of the prints will fall off easily. For example, soft polyethylene ink, soft polypropylene ink, soft polyvinyl chloride ink, etc., the first problem is to identify the type of plastic.
  如果您有济南自封口袋的需求可以点击我们的官网进行咨询:
  If you have the requirement of Jinan self-sealed pockets, you can click on our official website to consult: .